147771470 has 32 divisors (see below), whose sum is σ = 331623936. Its totient is φ = 46058400.

The previous prime is 147771439. The next prime is 147771479. The reversal of 147771470 is 74177741.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147771479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95186 + ... + 96725.

It is an arithmetic number, because the mean of its divisors is an integer number (10363248).

Almost surely, 2^147771470 is an apocalyptic number.

147771470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147771470 is an abundant number, since it is smaller than the sum of its proper divisors (183852466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147771470 is a wasteful number, since it uses less digits than its factorization.

147771470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191936.

The product of its (nonzero) digits is 38416, while the sum is 38.

The square root of 147771470 is about 12156.1289068519. The cubic root of 147771470 is about 528.6848489084.

The spelling of 147771470 in words is "one hundred forty-seven million, seven hundred seventy-one thousand, four hundred seventy".